/* AntennaHead / ControlBooth project site
   ------------------------------------------------------------------ */

:root {
  --bg:        #f6f6f4;
  --bg-2:      #ffffff;
  --bg-3:      #eeeeeb;
  --fg:        #1c1c1e;
  --fg-2:      #55555b;
  --fg-3:      #8a8a90;
  --border:    #dededa;
  --accent:    #2f7fd6;
  --accent-fg: #ffffff;
  --radio:     #b23b2e;
  --maxw:      1040px;
  --radius:    12px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:     #131315;
    --bg-2:   #1c1c1f;
    --bg-3:   #26262a;
    --fg:     #f2f2f4;
    --fg-2:   #b6b6bd;
    --fg-3:   #85858d;
    --border: #34343a;
    --accent: #4b9bef;
    --radio:  #e0655a;
  }
}
:root[data-theme="dark"] {
  --bg:     #131315;
  --bg-2:   #1c1c1f;
  --bg-3:   #26262a;
  --fg:     #f2f2f4;
  --fg-2:   #b6b6bd;
  --fg-3:   #85858d;
  --border: #34343a;
  --accent: #4b9bef;
  --radio:  #e0655a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ---- header / nav ---- */
.site-head {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(8px);
  border-bottom: 1px solid var(--border);
}
.site-head .wrap {
  display: flex; align-items: center; gap: 18px;
  height: 58px;
}
.brand {
  font-weight: 700; letter-spacing: .02em; color: var(--fg);
  display: flex; align-items: center; gap: 9px;
}
.brand .mark {
  font-size: 15px; line-height: 1;
  /* keep the emoji glyphs tight together */
  letter-spacing: -0.12em; padding-right: 0.12em;
}
.site-nav { margin-left: auto; display: flex; gap: 6px; flex-wrap: wrap; }
.site-nav a {
  color: var(--fg-2); padding: 6px 11px; border-radius: 8px; font-size: 14px;
}
.site-nav a:hover { background: var(--bg-3); color: var(--fg); text-decoration: none; }
.site-nav a.active { color: var(--fg); background: var(--bg-3); }

/* ---- hero ---- */
.hero { padding: 76px 0 44px; }
.hero .hero-mark {
  font-size: clamp(2.4rem, 6vw, 3.6rem); line-height: 1;
  letter-spacing: -0.08em; margin-bottom: .35em;
  filter: saturate(1.05);
}
.hero h1 {
  font-size: clamp(2rem, 4vw + 1rem, 3.3rem);
  line-height: 1.1; margin: 0 0 .5em; letter-spacing: -0.02em;
}
.hero p.lede {
  font-size: clamp(1.05rem, 1vw + .9rem, 1.35rem);
  color: var(--fg-2); max-width: 40ch; margin: 0 0 1.6em;
}
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 10px 18px; border-radius: 10px;
  font-weight: 600; font-size: 15px; border: 1px solid var(--border);
  background: var(--bg-2); color: var(--fg);
}
.btn:hover { text-decoration: none; border-color: var(--fg-3); }
.btn.primary { background: var(--accent); color: var(--accent-fg); border-color: transparent; }
.btn.primary:hover { filter: brightness(1.05); }

/* ---- generic section ---- */
section.band { padding: 52px 0; border-top: 1px solid var(--border); }
section.band > .wrap > h2 {
  font-size: clamp(1.4rem, 2vw + .6rem, 2rem); margin: 0 0 .2em; letter-spacing: -0.01em;
}
section.band > .wrap > p.sub { color: var(--fg-2); margin: 0 0 1.8em; max-width: 60ch; }

/* ---- feature grid ---- */
.grid {
  display: grid; gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.card {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px;
}
.card h3 { margin: 0 0 .35em; font-size: 1.06rem; }
.card p { margin: 0; color: var(--fg-2); font-size: .95rem; }

/* ---- phone frame (embedded UI demo) ---- */
.demo-layout {
  display: grid; gap: 34px; align-items: start;
  grid-template-columns: minmax(0, 1fr) auto;
}
@media (max-width: 820px) { .demo-layout { grid-template-columns: 1fr; } }

.phone {
  --w: 340px;
  width: var(--w);
  margin: 0 auto;
  background: #0c0c0d;
  border-radius: 46px;
  padding: 12px;
  box-shadow: 0 10px 40px rgba(0,0,0,.28), 0 0 0 1px var(--border);
}
.phone .screen {
  position: relative;
  width: 100%;
  aspect-ratio: 316 / 684;      /* iPhone-ish */
  border-radius: 34px;
  overflow: hidden;
  background: var(--bg-2);
}
.phone .screen iframe {
  position: absolute; inset: 0; width: 100%; height: 100%; border: 0;
}
.demo-note { font-size: .9rem; color: var(--fg-3); margin-top: 12px; text-align: center; }

/* ---- video ---- */
.video-grid { display: grid; gap: 22px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
figure.clip { margin: 0; background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
figure.clip video { display: block; width: 100%; background: #000; aspect-ratio: 9 / 16; object-fit: contain; }
figure.clip.landscape video { aspect-ratio: 16 / 9; }
figure.clip figcaption { padding: 12px 16px; font-size: .92rem; color: var(--fg-2); }
figure.clip .missing {
  display: flex; align-items: center; justify-content: center; text-align: center;
  aspect-ratio: 9 / 16; padding: 20px; color: var(--fg-3); font-size: .9rem;
  background: repeating-linear-gradient(45deg, var(--bg-3), var(--bg-3) 10px, var(--bg-2) 10px, var(--bg-2) 20px);
}

/* ---- dongle illustration ---- */
.dongle-fig {
  margin: 0; background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px; max-width: 420px;
}
.dongle-fig svg { display: block; width: 100%; height: auto; }
.dongle-fig figcaption { padding-top: 14px; font-size: .88rem; color: var(--fg-3); }

/* ---- ecosystem list ---- */
.repos { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.repo { display: block; background: var(--bg-2); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; }
.repo:hover { border-color: var(--fg-3); text-decoration: none; }
.repo b { color: var(--fg); }
.repo span { display: block; color: var(--fg-2); font-size: .88rem; margin-top: 2px; }

/* ---- footer ---- */
.site-foot { border-top: 1px solid var(--border); padding: 34px 0 60px; color: var(--fg-3); font-size: .88rem; }
.site-foot a { color: var(--fg-2); }

code { font-family: var(--mono); background: var(--bg-3); padding: .12em .4em; border-radius: 5px; font-size: .88em; }
hr.soft { border: 0; border-top: 1px solid var(--border); margin: 40px 0; }
.pill { display:inline-block; font-size:.75rem; font-weight:600; letter-spacing:.04em; text-transform:uppercase;
        color: var(--radio); border:1px solid color-mix(in srgb, var(--radio) 40%, var(--border));
        border-radius: 999px; padding: 2px 10px; }